Difference between systolic and diastolic blood pressure is known as-

Appeared in: RUHS, Jaipur, PB B.Sc Nursing Entrance-2024

Explanation

Pulse pressure is the medical term for the difference between systolic and diastolic blood pressure.
Systolic pressure is the highest pressure on arterial walls during ventricular contraction, while diastolic pressure is the lowest pressure when the ventricles relax.
The formula is: Pulse Pressure = Systolic Pressure - Diastolic Pressure.
A normal pulse pressure is between 40 and 60 mmHg and reflects the force of each heartbeat.

Option B: Pulse deficit is the difference between the apical pulse (counted at the heart) and the radial pulse (counted at the wrist).
Option C: Sinus pressure refers to pain and congestion in the facial sinuses, which is unrelated to cardiovascular pressure.
Option D: Cardiac pressure is a non-specific term that can refer to any pressure within the heart's chambers but does not define the specific difference between arterial systolic and diastolic pressures.

Clinical Relevance

Nursing practice connection: Knowing Definition and calculation of pulse pressure helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
Monitoring pulse pressure is crucial as it provides insight into cardiac output and arterial stiffness.
A narrowing pulse pressure (e.g., less than 25% of the systolic value) can be an early warning sign of shock, cardiac tamponade, or severe heart failure, prompting urgent intervention.
A widening pulse pressure can be a late sign of increased intracranial pressure (part of Cushing's triad) or indicate conditions like aortic regurgitation.

How to Approach the Question

First, identify the keywords in the question: 'difference', 'systolic', and 'diastolic blood pressure'.
This is a factual recall question testing your knowledge of fundamental cardiovascular terminology.
Systematically review each option's definition.
Recall that 'Pulse pressure' is the specific term for the mathematical difference between systolic and diastolic pressures.
Eliminate 'Pulse deficit' as it relates to the difference between apical and radial pulses.
Eliminate 'Sinus pressure' and 'Cardiac pressure' as they are either unrelated or too non-specific.

Concept Tested & Keywords

Qk-pTJBY2O2V7ZLUHa6tsM

E6 Nursing Fundamentals Taylor p. 151-153

E6 Medicine Macleod Clinical Examination 15e p. 61-63

Practise the full RUHS, Jaipur, PB B.Sc Nursing Entrance-2024

Attempt every question from this paper in a timed mock, then review the full solution for each one.